Both Microsoft and Sony were reportedly running some game demos at Gamescom 2014 using powerful custom-built PCs to display console games. Live game demonstrations of "Ori" and "Blind Forest" crashed to the Microsoft Windows 7 operating system, and the PCs appear to be powered by NVIDIA instead of AMD GPUs, according to reports.
It's not uncommon for game studios, even when promoting console games, to use PCs to help enhance the demonstration experience for attendees. However, even if the game is available on all next-generation consoles and the PC, gamers will often call out the studio if graphics and gameplay don't replicate what was originally shown to them.
During public demoes, companies are tasked with providing lightning-fast gameplay mixed with pretty graphics to entice gamers and media. It seems both companies have been caught doing this over the past few years, eager to demonstrate their latest and greatest console games - but using PCs instead of their own products to get the job done.
This is a somewhat controversial practice that won't suddenly end anytime soon, but companies can expected to be called out when it does take place.